Any tips on verifying the authenticity of SN?

[Dawns]

I'm afraid of getting SN from a source that is likely scam me, or give me something that is not SN. Anyone have any tips on making sure that it is pure? Like is there test kits or something I can get ? or do i need to send it to a lab

 

[Mimi_]

Hello! I know you can mix your blood with a bit of SN. If it turns darker it wasn't a scam.

SN blood test for authenticity

Everywhere the photos are not entirely clear, here's another check under the spoiler photo

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